Results 81 to 90 of about 574,262 (277)

Rheology of columnar-grained ice

Experimental Mechanics, 1978
Creep of the columnar-grained ice, under uniaxial compressive force normal to the columns, is shown to be composed of an instantaneous elastic response followed by a delayed elastic and viscous deformation. Both the delayed elastic and viscous strains are shown to have equal activation energies.
openaire   +3 more sources

Ice Concentration Scaling Laws for Freshwater Lakes in Numerical Weather and Climate Prediction

Geophysical Research Letters, 2023
If lake ice is assumed to deform and fail as a linear viscoelastic material under the action of wind stress, then a simple ice concentration scaling law can be constructed suitable for one‐dimensional lake models embedded within environmental prediction ...
Murray D. MacKay
doaj   +1 more source

Linking Polyelectrolyte Modification and Enzyme‐Catalyzed Phenolic Acid Functionalization of Cellulose Fiber for Functional Foams

Advanced Materials Technologies, EarlyView.
Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil, Sara Wallstén, Paul Christakopoulos, Ulrika Rova, Io Antonopoulou   +4 more
wiley   +1 more source

Analytical foundations of ice rheology

Journal International Academy of Refrigeration
The deformation of ice is most reliably determined using stress diagrams. Analytical models for stress diagrams have been developed. In the class of analytical functions, the main rheological model of the stress diagram is represented by a polynomial dependency. A more compact empirical dependency is described by a logarithmic function. Both models are
S.V. Koshkin, I.A. Veprinyak, S.D. Chizhiumov   +2 more
openaire   +1 more source

Co‐Delivery of Sustained Release Chondroitinase ABC‐37 With Human iPSC‐Derived Neural Progenitors Promotes Transplant Survival and Functional Recovery in a Rodent Model of Stroke

Advanced Science, EarlyView.
A regenerative strategy for stroke combines human stem cell–derived neural progenitor cells with sustained release of a matrix‐modifying, thermostable chondroitinase ABC‐37 enzyme. In a rat model of stroke, co‐delivery enhanced transplanted cell survival and neuronal differentiation, degraded inhibitory extracellular matrix components, and improved ...
Nitzan Letko Khait, David Xinzheyang Li, Keyi Guo, Hong Cui, Quinton Sirianni, Dhana Abdo, Cindi M. Morshead, Molly S. Shoichet   +7 more
wiley   +1 more source

Evaluating simulated linear kinematic features in high-resolution sea-ice simulations of the FAMOS Sea Ice rheology experiments (SIREx)

, 2021
The sea-ice modelling community progresses towards Pan-Arctic simulations that explicitly resolve leads in the simulated ice cover. Initiated by the Sea-Ice Working Group at the Forum for Arctic Modelling and Observational Synthesis (FAMOS), the Sea Ice ...
Rampal, Pierre, Myers, Paul G., Rasmussen, Till, Lee, Younjoo, Tremblay, Bruno, Wang, Qiang, Lemieux, Jean-François, Losch, Martin, Talandier, Claude, Hutter, Nils, Koldunov, Nikolay, Dukhovskoy, Dmitry, Lique, Camille, Ólason, Einar, Dupont, Frédéric, Maslowski, Wieslaw, Lee, Younjoo J., Bouchat, Amélie, Martin Losch, Amélie Bouchat, Nils Hutter, Paul G. Myers, Frédéric Dupont, Einar Olason, Jean-François Lemieux, Nikolay Koldunov, Wieslaw Maslowski, Till Rasmussen, Claude Talandier, Qiang Wang, Camille Lique, Pierre Rampal, Younjoo Lee, Dmitry Dukhovskoy, Bruno Tremblay   +34 more
core   +2 more sources

Tidal bending of ice shelves as a mechanism for large-scale temporal variations in ice flow [PDF]

The Cryosphere, 2018
GPS measurements reveal strong modulation of horizontal ice shelf and ice stream flow at a variety of tidal frequencies, most notably a fortnightly (Msf) frequency not present in the vertical tides themselves.
S. H. R. Rosier, G. H. Gudmundsson
doaj   +1 more source

Impact of granular behaviour of fragmented sea ice on marginal ice zone dynamics [PDF]

, 2022
Sea ice retreat and opening of large, previously ice-covered areas of the Arctic Ocean to wind and ocean waves is leading to large changes in the sea ice state.
Aksenov, Yevgeny, Yevgeny Aksenov, Daniel L. Feltham, Gurvan Madec, Nurser, A. J. George, Madec, Gurvan, Feltham, Daniel L., A. J. George Nurser, Rynders, Stefanie, Stefanie Rynders   +9 more
core   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Driving Mechanisms of an Extreme Winter Sea Ice Breakup Event in the Beaufort Sea

Geophysical Research Letters, 2022
The thick multiyear sea ice that once covered large parts of the Arctic is increasingly being replaced by thinner and weaker first‐year ice, making it more vulnerable to breakup by winds.
Jonathan W. Rheinlænder, Richard Davy, Einar Ólason, Pierre Rampal, Clemens Spensberger, Timothy D. Williams, Anton Korosov, Thomas Spengler   +7 more
doaj   +1 more source